DIEFTERA. Sak 
CutoneEa, Dalm. 
C. araneoides. The only species known; it is found in win- 
ter, on snow.and ice(1). 
A second subgenus might be formed with the Z%pule atome of De 
Geer—Menm. Ins., VIII, 602, XLIV, 27—which is always apterous, 
but whose antennz have at least fifteen joints, whereas M. Dalman 
allows but ten to the preceding Insect. De Geer found this species 
running very rapidly across his table. ‘They are both very small. 
Another division of our Tipulariz, that of the Fungivora, is dis- 
tinguished from the preceding ones by the presence of two or three 
ocelli. The antennze also are much longer than the head, slender, 
composed of fifteen or sixteen joints, a circumstance which removes 
these Insects fromthe succeeding division. The eyes are entire or 
emarginated. There is no division in the last joint of the palpi. The 
wings are always incumbent and horizontal on the body, and their 
nervures, longitudinal as well as transverse, are usually much less 
numerous than those of the preceding Tipulariz. The legs are al- 
ways long and slender, and the extremities of the tibiz spinous. 
In some the palpi are curved, and composed of at least four very 
apparent joints. ‘The antennz are filiform or setaceous. 
Of these, some have the anterior extremity of the head prolonged 
into a rostrum or proboscis, and in those where this elytron is less 
considerable, the head is almost entirely occupied by the eyes. There 
are always three ocelli. The antenne are short, and their joints but 
slightly elongated. 
Those species, in which the eyes occupy almost the whole of the 
head, where the ocelli are of equal size and placed on acommon emi- 
nence, and where the rostrum projects and is not longer than the 
head, form the subgenus 
Ruypuus, Lat.(2) 
Those, in which the eyes only cccupy the sides of the head, where 
the ocelli are not situated on a common tubercle, and where the an- 
(1) Dalm., Anal. Entom., p. 35. 
(2) Lat., Gen. Crust. et Insect., IV, 251; Meig., Ibid. 
